from what i and stand rachel took a larger view looking at the first lady and her larger ancestry and putting together a larger story as a result. >> go ahead. >> if i can jump in, my favorite was david maraniss. it was exhaustive and exhausting. he goes into every detail and it ends as obama is going to harvard. so it is very much a coming of age biography, early parts of the president's life, very well researched. a book about political marriage, always feel unless you are part of a marriage, there's a lot to understand, tried to make the case that michele obama was more political than she was going to let on and political tension. in fighting in the obama white house which reports widely in the early days, the history was valuable because of the attention is on president obama being the last president because his black ancestors came from elsewhere there were no slaves in his family. michele obama had slaves and white ancestors, great american complexity in how we induce race to black-and-white but it really isn't. >> just to quickly mentioned david maraniss's "barack obama: the st